Add the eggs one at a time. Make sure each egg is incorporated before adding the next.

Add the vanilla. Mix for 3-4 minutes.

In another mixing bowl, whisk together the flour, baking soda, cornstarch and salt.

With the machine on low, slowly add the flour to the batter. Mix until just combined.

Mix in the chocolate chips.

Using a spoon, scoop out about a tablespoon of dough. Roll around in the palm of your hand and shape it into a ball. Now slightly flatten in fall with the palms of your hands. These cookies do not rise or flatten out once in the oven, so what ever shape you press it down to is what shape they are going to be.